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A method and system for providing visual annotation in a shared display environment

a shared display environment and visual annotation technology, applied in the field of screen sharing, can solve the problems of difficulty in accurately explaining the precise location of interest to all participants, difficulty for each participant to focus on a rapidly moving pointing device, and inability to achieve the desired focusing effect of each solution

Inactive Publication Date: 2006-11-30
CITRIX SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each of these solutions may not achieve the desired focusing effect for a number of reasons.
For example, it may be difficult to accurately explain the precise location of interest to all the participants.
Additionally, it may be difficult for each of the participants to focus on a rapidly moving pointing device for one reason or another.

Method used

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  • A method and system for providing visual annotation in a shared display environment
  • A method and system for providing visual annotation in a shared display environment
  • A method and system for providing visual annotation in a shared display environment

Examples

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Embodiment Construction

[0023] As an overview, one aspect of the invention replaces the current cursor of a presenter computing system that is participating in the screen sharing session with an oversized translucent cursor (also referred to as a replacement cursor or custom cursor through the specification) and transmits the translucent cursor to each participating viewer system. The resolution of oversized translucent cursor is determined on system-by-system basis. On a system where the display settings are set to thirty-two bits per pixel (highest quality, millions of colors) one embodiment of the oversized translucent cursor is represented as a thirty-two bit forty-eight pixel by forty-eight pixel cursor. On sixteen bit and eight bit systems, where thirty-two bit cursors are not supported, the current cursor of the shared screen is replaced with a replacement cursor that is a disc of dots having a size similar to the translucent disk. The replacement cursor aids the participants of the screen sharing s...

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PUM

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Abstract

A system and method for focusing attention to an area of a shared display are described. The method includes associating a substantially transparent window with the location of a cursor to position the cursor within the substantially transparent window and changing the appearance of the cursor to highlight a portion of the display.

Description

FIELD OF THE INVENTION [0001] The invention generally relates to screen sharing and more specifically to focusing attention to a specific area of the shared screen. BACKGROUND OF THE INVENTION [0002] One example of a screen sharing application is the GOTOMEETING service offered for use by Citrix Online Division of Santa Barbara, Calif. During a screen sharing session, it is often desirable to focus attention to a specific area of the shared screen. One way to focus attention is to verbally explain the location to the other attendees of the screen sharing session. Another way is to move a pointing device, such as a cursor, to the desired area and rapidly moving the pointing device within a relatively small and constrained area. [0003] Each of these solutions may not achieve the desired focusing effect for a number of reasons. For example, it may be difficult to accurately explain the precise location of interest to all the participants. Additionally, it may be difficult for each of t...

Claims

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Application Information

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IPC IPC(8): G06F9/00G06F3/038
CPCG06F3/038G06F3/04812G09G5/14G06F2203/0383G06F2203/04804G06F3/1462
Inventor GREEN, BRIANTHEURER, DAVID FREDERICLEFLER, CAREY
Owner CITRIX SYST INC
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